Description
| CAS | 7727-54-0 |
| Molecular Formula | (NH4)2S2O8 |
| Molecular Weight | 228.19 |
| Shelf Life | 60 Months |
| Physical Properties | |||
| Physical State at 20 °C | Solid | Colour | White crystalline |
| Odour | Odorless | pH Value | 1 – 2 |
| Melting Point/ Freezing Point [°C] | 120°C | Vapour Density | 7.88 |
| Density [g/cm3] | 1.98 | Solubility in Water [% weight] | 228 g/l at 20 °C |
| Oxidising Properties | The substance or mixture is classified as oxidizing with the subcategory 3 | ||
| Specifications | |||
| Appearance | White crystalline powder | Assay (By Kmno4 Titration) | Min 98.0% |
| Insoluble Matter in Water | Max 0.005% | Titrable Free Acid | Max 0.04 meq/g |
| Chloride & Chlorates (As Cl) | Max 0.001% | Iron (Fe) | Max 0.001% |
| Heavy Metal (As Pb) | Max 0.005% | Manganese (Mn) | Max 0.00005% |
| Residue On Ignition (As So4) | Max 0.05% | ||
| Dangerous Goods Information | |||
| UN Number | 1444 | DG Class | 5.1 |
| Safety Information & Hazard Symbols | |
| Symbol | GHS03, GHS07, GHS08 |
| Signal Word | Danger |
| Hazard Statement | H272-H302-H315-H317-H319-H334-H335 |
| Precaution Statement | P220-P261-P280-P305 + P351 + P338-P342 + P311 |















